| umbilical doppler s/d ratio | 1.52 | 0.9 | 7422 | 27 | 53 |
| umbilical doppler s/d | 0.2 | 1 | 4768 | 21 | 89 |
| umbilical dopplers | 0.29 | 0.1 | 6469 | 18 | 99 |
| umbilical dopplers perinatology | 2 | 1 | 1880 | 31 | 5 |
| umbilical doppler calculator | 0.52 | 1 | 9307 | 28 | 20 |
| umbilical doppler chart | 1.08 | 0.4 | 419 | 23 | 35 |
| perinatology umbilical artery doppler | 0.84 | 0.1 | 3998 | 37 | 90 |
| umbilical artery doppler | 1.99 | 0.6 | 900 | 24 | 100 |
| umbilical artery doppler calculator | 0.52 | 0.2 | 865 | 35 | 79 |
| normal umbilical artery doppler | 1.77 | 0.3 | 978 | 31 | 31 |
| doppler velocimetry fetal umbilical artery | 0.39 | 0.4 | 3556 | 42 | 8 |
| umbilical artery doppler chart | 0.95 | 0.2 | 8961 | 30 | 92 |
| elevated umbilical artery doppler | 0.81 | 0.4 | 1341 | 33 | 29 |
| umbilical artery doppler s/d ratio chart | 0.31 | 0.1 | 2422 | 40 | 15 |
| normal umbilical doppler s/d ratio | 1.33 | 0.1 | 9922 | 34 | 51 |
| umbilical cord doppler s/d ratio | 0.32 | 0.7 | 6435 | 32 | 5 |
| umbilical artery doppler normal s/d ratio | 0.32 | 0.6 | 4064 | 41 | 4 |
| umbilical artery doppler s/d ratio | 1.89 | 0.8 | 6050 | 34 | 97 |
| s/d ratios umbilical artery doppler | 0.66 | 1 | 1847 | 35 | 20 |
| umbilical cord doppler ratio | 1 | 0.6 | 565 | 28 | 45 |
| umbilical artery doppler ratio | 0.93 | 1 | 663 | 30 | 3 |
| umbilical artery doppler sd ratio | 0.1 | 0.4 | 9262 | 33 | 63 |
| umbilical s/d ratio | 0.33 | 0.6 | 5100 | 19 | 77 |
| perinatology umbilical doppler calculator | 0.37 | 1 | 4672 | 41 | 4 |
| umbilical artery s/d ratio | 1.57 | 1 | 3678 | 26 | 36 |
| perinatal umbilical doppler calculator | 0.1 | 0.9 | 1828 | 38 | 8 |
| umbilical cord s/d ratio | 0.76 | 0.4 | 9730 | 24 | 11 |
| s/d ratio umbilical artery chart | 0.82 | 0.4 | 7315 | 32 | 61 |
| umbilical cord doppler normal values | 0.81 | 0.3 | 7171 | 36 | 24 |
| umbilical artery doppler percentile | 1.13 | 0.1 | 3260 | 35 | 21 |
| umbilical artery doppler reference values | 1.83 | 0.9 | 2244 | 41 | 24 |
| normal s/d ratio umbilical artery | 0.21 | 0.9 | 5719 | 33 | 35 |
| umbilical artery sd ratio chart | 0.38 | 0.3 | 5054 | 31 | 5 |
